Home / 209,147.68-288,577.20-118,495.72

Finding the Fourth Proportional to 209,147.68, 288,577.20 and 118,495.72

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Solution

The fourth proportional to 209,147.68, 288,577.20 and 118,495.72 is: 163,497.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,147.68 : 288,577.20 = 118,495.72 : x
  2. Step 2: Convert to fraction form
    209,147.68/288,577.20 = 118,495.72/x
  3. Step 3: Cross multiply
    209,147.68x = 288,577.20 × 118,495.72
  4. Step 4: Simplify right side
    209,147.68x = 34,195,163,089.58
  5. Step 5: Solve for x
    x = 34,195,163,089.58/209,147.68
  6. Step 6: Final answer
    x = 163,497.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.